<template>
   <header class="header">
      <h1>任务列表</h1>
      <input class="new-todo" placeholder="请输入要做的事情" autofocus  v-model="todoname" @keyup.enter="add"/>
    </header>
</template>

<script>
export default {
  data(){
    return{
      todoname:''
    }
  },
  methods:{
    add(){
      this.$emit('add',this.todoname)
      this.todoname = '' //清空输入框
    }
  }
}
</script>

<style>

</style>